Pressing: Smooth Isosurfaces with Flats from Binary Grids
Williams, Jason Daniel
Rossignac, Jaroslaw R.
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We propose an approach, called Pressing, for smoothing isosurfaces extracted from binary volumes while recovering their large planar regions (flats). Pressing uses global optimization to identify flats and constrained bilaplacian smoothing to eliminate noise from the isosurface. It recovers sharp edges between flats and between flat and smooth regions, yielding a more accurate approximation of the original solid than isosurfaces produced by previously proposed approaches. The result may benefit shape recognition, simplification, compression, and various reverse engineering and manufacturing applications.